Watch the areas to park. They do pass out tickets form what the locals say. The designated parking areas are free for some spots, and pay for others. They do fill up fast, though. Then the alternative is to drive out of town, and park far away, having to walk back into town. Or, you can traverse back and forth up and down the main street in the traffic. UGH!
Drivers need to be alert at all times. There are many side roads and driveways entering the highways, and local people are not as attentive as you would like. They can pull out right in front of you, and then take off at 20 MPH, or very slow speed. Also the timber trucks are part of there life up here. If caught behind one of those, you may as well pull over rather than wait to try and pass, which is nearly impossible with winding roads. However, another will come along later.
Through the fall and early spring, the highways can accumulate ice due to the elevation level, and swiftly changing climate. Be careful
You need to prepare yourself for a trip longer than anticipated. Every time I have come to the Georgia hills, it seems like it takes 2 to 3 times longer than you envision to get to the destination. That is because of all the small towns along the way, and the winding rods. Some places you can only travel 30-40 MPH 50-60KM, due to the winding roads and intersections of others. By the way, it is icy and slippery in winter months-black ice could be prevalent. Further, the locals travel at snail pace and are "gawking" while driving. Beware of the unpredictable situations.
You'll need to drive there but once your there you can take the hot air ballon rides or even a horse and buggy ride. The directions from Atlanta are available at http://www.helenga.org